William young



W. YOUNG.

Grate, Fire Place, and Furnace.

N. PEYERS Phno'Liuwgnphnr. wamingvun. Dx;

@with tutes gatrnt @frs WILLIAM YOUNG, OF LONDON., ENGLAND.

Lettere Patent No. 71,260, dated November 19, 1867, patented in EngZanoZ,'Aprz'Z 11, 1866.

IMPROVEMENTIN GBATBS, FIREPLAGES, AND FURNAGES.

tlgs ttehnli maar it im tipa tattrs tapent mit making artt uf ilge smut.

TO ALL WHOM IT MAY CONCERN:

Beit known that I, W ILLIAM YOUNG, of 34 Queen stre'ct, Cheapside, in the city of London, lampl manu-- facturer, have invented Improvements in and-Applicable to Gra`tes, Fireplaces, and Furnaces; and 11de hereby declare that the following is a full and exact description of my said invention.

My invention, of improvements in and applicable to grates, iireplace's, and furnaces, consists in the use of a series of spiral bars formed into a screw or incline, with spaces in it for the double purpose of admitting air to the fuel and raising the fuel to the re.

i vWhen adapted and applied to gratas, the series of spiral bars, forming a screw or incline, with spaces init, may be used in .combination with only atop bar, thereby answering the purpose of the ordinary bottom bars for supporting the fuel, and also of the intermediate front bars of the grate. The fresh fuel is supplied to a box'in which the spiral bars are mounted, so as to admit of their being turned, as required, in order to raise such fuel into the rc. The spiral bars may be made hollow, for. the purpose of allowing water to pass through them from a cistern to furnish a supply of hot water.

And 'when the spiral bars are adapted and applied to furnaces, they are inserted at th'efront or other suitable part of the fireplace. The spiral bars are mounted, as required, and caused to revolve at a slow speed byv hand, or by means of suitable gearing. The fresh fuel is fed into a hopper or chutein front, or into one on each side, and is conveyed, to the lower part of the screw or incline formed of spiral bars, by the revolution of which screw or incline the fuel is raised up, as required, into the lire, the air for supporting combustion passing through the spaces between the spiral bars.

The said screw or incline, with spaces in it, when applied to either of the above-named purposes, may be constructed in separate spiral bars, fixed together, with intervals .between them, or it may be constructed so as to consist practically of a series of spiral bars, with spaces between them, cast or formed in one piece.

Having thus stated thenature' of the said invention, I will proceed to describe more particularly in what lmanner the same is to be performed, by reference to the accompanying drawings, in which is represented a screw or incline, with spaces in it, formed of spiral bars, and applicable both to grates and furnaces.

Description of the Drawings.

Figure 1 is aplongitudinal elevation of a metal box, in which are mounted spiral bars, withl a screw-conveyer at each end.

Figure 2 is a transverse vertical section of the same, through the bars at the central rib, formed by the junctions thereof. v

Figure 3 is a horizontal section of the metal box, showing the spiral bars and screw-conveyer' in plan.

In these several figures the same letters of reference indicate corresponding parts.

A A are the spiral bars, which may be either made separately, and united -at their ends, or they may he cast in one piece, as a screw or incline, with spaces in it, through which air will pass, as required. B B are two screw-conveyers, one atl each end of the series of spiral bars, for the purpose of conveying the fuel deposited thereon to the spiral bars, as they are caused to revolve, by turning the axis C, vto which they and the spiral bars are xed. These screw-conveyers are preferred to be grooved, as shown in figs. 2 and 3, but their surfaces may be plain, as an ordinary screw-conveyer.

` The spiral bars A and screw-c'onveyers B B, fixed on an axis, C, are mounted in a metal box, D, which has two openings in it, one at the front, for the admission of air to the spiral bars, and another at the back, leadA ing to the fireplace or the furnace, as the case may be. Th'e opening in front is covered by a hinged door, E, with horizontal spaces in it. There are also openings or hoppers F F at the top, through which fuel is supplied 011 to the screw-conveyers B B. The fireplace or furnace, at the back of the box D, consists of an inclined bed of tire-brick, on which the fucl is burned.

It will thus be seen that, on fucl being supplied to the conveyors B B, through the hoppers F F, and on the axis C being turned, the fuel will be conveyed to the bottom and central part of the spiral bars, and bythe continued revolution of spiral bars, it will he worked forward .through the opening at the back of'the box D, and on to the inclined beu d. *he fireplace, on which the burning fuel rests. It will. also be seen that the' v air will passK through the spiral bars A, and support the combustion of tho fuel on the said inclined bed.

The section of the spiral bars, as shown in Eff. 2, is such as to admit ofs the free passage ofair, in divided streams, to the burning fuel, and such section is, for that reason, preferred. But the sectionbf the said bars, and their distance apart, may be varied.

The spiral bars, as shown, may be adapted and applied either to a replace, in substitution for an ordinary grate, or to a furnace, and the general arrangement ofthe parts, with the mode of working them,\will be readily understood from theforegoing description. It is to be observed, however, that the arrangement of mechanism for working the spiralbars, when applied to furnaces, is adapted to produce a motion of the axis C at shorter intervals than is reqiiired when a'pplied to gratos, or the mechanism may be adapted to produce a continuous slow motion of the said axis.

Having thus described the nature of the said invention, and in what manner the samcis to4 be performed, I would remark that the pitch of the screw of spiral bars may be varied from that shown. in the drawings, and the screw-conveyers, at each end of the spiral bars, may be dispensed with without departing from the principle of my invention. But I hereby declare that what I claim as of my invention is- The application to grates, fireplaces, and furnaces, of spiral bars, adapted for the double purpose of feeding and raising the fuel to the fire, and admitting air to the fuel, as hereinbefore described.

In witness whereof, I, the said WILLIAM YOUNG, have hereunto set my hand and seal the tenth day of July,

in the year of our Lord one thousand eight hundred.and-sixty-seven.

' WILLIAM YOUNG. [L s.]

Witnesses:

WILLrAM SPENCE, 8 Quality Court, C'zancery'Lane, London.

W. WYNN,v 24 Rog/al Exchange, London. 

